Multiple core-hole formation by free-electron laser radiation in molecular nitrogen. (12th April 2018)

• Record Type: Journal Article
• Authors: Banks, H I B; Little, D A; Emmanouilidou, A
• Is Part Of: Journal of physics. Volume 51:Number 9(2018:May 01)
• Publication Date: 2018-04-12
• Subjects: molecular dynamics -- frustrated ionization -- strong-field ionization; 33.80.Rv -- 34.80.Gs -- 42.50.Hz; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/1361-6455/aab40f
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: We investigate the formation of multiple-core-hole states of molecular nitrogen interacting with a free-electron laser pulse. In previous work, we obtained bound and continuum molecular orbitals in the single-center expansion scheme and used these orbitals to calculate photo-ionization and auger decay rates. We extend our formulation to track the proportion of the population that accesses single-site versus two-site double-core-hole (TSDCH) states, before the formation of the final atomic ions. We investigate the pulse parameters that favor the formation of the single-site and TSDCH as well as triple-core-hole states for 525 and 1100 eV photons.